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CVE-2024-30040

Microsoft Windows MSHTML Platform Security Feature Bypass

8.8 HIGHActively exploited (CISA KEV)EPSS 3.94%
  1. Published14 May 2024
  2. Added to CISA KEV14 May 2024
  3. Remediation due4 Jun 2024
Actively exploited (CISA KEV)

Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for a security feature bypass.

Added to KEV: 14 May 2024Federal remediation due: 4 Jun 2024

Description

Windows MSHTML Platform Security Feature Bypass Vulnerability

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.20651
Microsoft Windows 10 1607< 10.0.14393.6981
Microsoft Windows 10 1809< 10.0.17763.5820
Microsoft Windows 10 21h2< 10.0.19044.4412
Microsoft Windows 10 22h2< 10.0.19045.4412
Microsoft Windows 11 21h2< 10.0.22000.2960
Microsoft Windows 11 22h2< 10.0.22621.3593
Microsoft Windows 11 23h2< 10.0.22631.3593
Microsoft Windows Server 2016< 10.0.14393.6981
Microsoft Windows Server 2019< 10.0.17763.5820
Microsoft Windows Server 2022< 10.0.20348.2458
Microsoft Windows Server 2022 23h2< 10.0.25398.887

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.20651
Microsoft Windows 10 1607≥ 10.0.14393.6981
Microsoft Windows 10 1809≥ 10.0.17763.5820
Microsoft Windows 10 21h2≥ 10.0.19044.4412
Microsoft Windows 10 22h2≥ 10.0.19045.4412
Microsoft Windows 11 21h2≥ 10.0.22000.2960
Microsoft Windows 11 22h2≥ 10.0.22621.3593
Microsoft Windows 11 23h2≥ 10.0.22631.3593
Microsoft Windows Server 2016≥ 10.0.14393.6981
Microsoft Windows Server 2019≥ 10.0.17763.5820

References

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Frequently asked

Is CVE-2024-30040 being actively exploited?

Yes. CVE-2024-30040 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 14 May 2024.

How severe is CVE-2024-30040?

CVE-2024-30040 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 3.94% probability of exploitation.

Which products are affected by CVE-2024-30040?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, and 7 more.

How do I fix CVE-2024-30040?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20651, Microsoft Windows 10 1607 10.0.14393.6981, Microsoft Windows 10 1809 10.0.17763.5820 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-30040 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.